A method of determining position includes observing a first signal from a first source at a first epoch. The method includes observing a second signal from the first source at a second epoch. The method includes observing a third signal from a second source at the first epoch. The method includes observing a fourth signal from the second source at the second epoch. The method includes generating a first set of comparison data based on the first signal and the second signal. The method includes generating a second set of comparison data based on the third signal and the fourth signal. The method includes determining whether cycle-slip exists based on the first set of comparison data and the second set of comparison data. The method includes determining a current position of a standalone global navigation satellite system (GNSS) receiver in response to a determination that cycle-slip does not exist.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The method of claim 1, further comprising repairing the cycle-slip in response to a determination that cycle-slip does exist.
3. The method of claim 2, further comprising determining the current position of the standalone GNSS receiver based on the repaired cycle-slip in response to the determination that cycle-slip does exist.
4. The method of claim 1, wherein repairing cycle-slip with the non-zero ambiguity for observable that detected cycle-slip.
5. The method of claim 1, wherein determining whether cycle-slip exists comprises determining that cycle-slip does not exist in response to a determination that the resolved ambiguity is zero.
6. The method of claim 1, wherein observing the first signal comprises observing the first signal from a first satellite, and observing the third signal comprises observing the third signal from a second satellite.
7. The method of claim 6, wherein the second satellite has a higher elevation than the first satellite.
9. The standalone GNSS of claim 8, wherein the processor is further configured to execute the instructions for repairing the cycle-slip in response to a determination that cycle-slip does exist.
10. The standalone GNSS of claim 9, wherein the processor is further configured to execute the instructions for determining the current position of the standalone GNSS receiver based on the repaired cycle-slip in response to the determination that cycle-slip does exist.
11. The standalone GNSS of claim 8, wherein the processor is further configured to execute the instructions for determining whether cycle-slip exists by determining that cycle-slip does not exist in response to a determination that the resolved ambiguity is zero.
12. The standalone GNSS of claim 8, wherein the processor is further configured to execute the instructions for observing the first signal from a first satellite, and observing the third signal from a second satellite.
14. The method of claim 13, further comprising determining the current position of the standalone GNSS receiver based on the repaired cycle-slip in response to the determination that cycle-slip does exist.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
November 5, 2020
August 16, 2022
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.